This project addresses an innovative and unique deicing system suitable for composite leading edges of aircraft. Helicopter rotors, engine inlets, as well as many recently designed aircraft are made of composite materials. The concept consists of a thin spiral coil encapsulated in elastomer and bonded to the composite leading edge. A thin metal strip is formed across the leading edge over the coil. A bank of capacitors discharges through the coil, inducing eddy currents in the thin metal strip and creating the impulse deicing force. The outer strip serves as a surface for the collection and shedding of ice and does not require any structural properties. The eddy-current repulsion deicing strip (EDS) concept has five advantages. Stress and fatigue effects are limited to the replaceable, outer metal strip. It would be easy to retrofit since there is no impact on aircraft design or structure. It provides a tough, erosion resistant metal leading edge. There would little electromagnetic interference due to the shielding effect of the metal. Ice does not adhere to metal as well as to elastomer.
Potential Commercial Applications: This product may aid in the certification of numerous aircraft for use in known icing conditions.STATUS: Project Proceded to Phase II-
